Hennessey, OK Weather & Growing Conditions
Today
104°F
Sunny
Sunny, with a high near 104. Heat index values as high as 103. South southeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 104°F | Sunny | 10 mph SSE | 1% |
| Tonight | 77°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 6 to 9 mph S | 12% |
| Wednesday | 102°F | Slight Chance Showers And Thunderstorms | 8 to 12 mph SW | 12% |
| Wednesday Night | 75°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph SE | 12% |
| Thursday | 100°F | Mostly Sunny | 6 to 10 mph SSW | 9% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms | 7 to 10 mph SE | 31% |
| Friday | 98°F | Chance Showers And Thunderstorms | 7 to 12 mph SSE | 31% |
| Friday Night | 73°F | Mostly Clear | 6 to 10 mph SSE | 14% |
| Saturday | 99°F | Sunny | 6 to 10 mph S | 14% |
| Saturday Night | 75°F | Clear | 12 mph S | 2% |
| Sunday | 100°F | Sunny | 9 to 14 mph S | 1% |
| Sunday Night | 75°F | Clear | 13 mph S | 0% |
| Monday | 100°F | Sunny | 13 to 16 mph SSW | 0% |
| Monday Night | 76°F | Clear | 15 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hennessey, OK
Last spring frost
Apr 14
First fall frost
Oct 30
Growing season
198 days
Hardiness zone
7a
Explore more for Hennessey, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Hennessey 4 Ese, Ok (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.